Mercurial > urweb
view tests/blobOpt.ur @ 1832:373e2c3f03b2
Rename Basis.exp to Basis.pow, to avoid confusion with 'expression'; add a test case for it
author | Adam Chlipala <adam@chlipala.net> |
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date | Wed, 28 Nov 2012 11:45:46 -0500 |
parents | cd67c3a942e3 |
children |
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sequence s table t : { Id : int, Data : option blob, Typ : string } fun view id = r <- oneRow (SELECT t.Data, t.Typ FROM t WHERE t.Id = {[id]}); case r.T.Data of None => return <xml>This one's empty.</xml> | Some data => returnBlob data (blessMime r.T.Typ) fun save r = id <- nextval s; dml (INSERT INTO t (Id, Data, Typ) VALUES ({[id]}, {[Some (fileData r.Data)]}, {[fileMimeType r.Data]})); main () and saveEmpty () = id <- nextval s; dml (INSERT INTO t (Id, Data, Typ) VALUES ({[id]}, {[None]}, "bogus")); main () and main () = ls <- queryX (SELECT t.Id FROM t) (fn r => <xml><li><a link={view r.T.Id}>{[r.T.Id]}</a></li></xml>); return <xml><body> {ls} <br/> <form> <upload{#Data}/> <submit action={save}/> </form> <form> <submit action={saveEmpty}/> </form> </body></xml>